Pump head



April 16, 195. R, E. SWANSON 199987414 PUMP HEAD Filed May 10, 1953 5 Sheets-Sheet 1 April ,1935. R. E. SWANSON 1,998,414

PUMP HEAD Filed May 10, 1935 5 Sheets-Sheet 2 IIHIHHH Apr l 16, @935 R. E SWANSON 1,998,414

PUMP HEAD Filed May 10, 1953 5 Sheets-Sheet 5' mum/f Patented Apr. 16, 1935 N ED-I STATES PATENT QFFLCE V e BUM! HEAD Baympnd Swens0n, Lawrencepurg, Ind., as-

signof'to AJD. 006k; Inc., 'Lzwreheeburg, 11111., a corporationbf Indiana M 2532 I 92? Me? 1.9 3 fi i N9- 619 e 1 I ewe? flee 2 e 5 ni e eeneflaer 9 1991; e w'my t ennrh'ee tha a l e'qiljeecesisiple.

U01; 1 provide L'TI l er 1 1 1 W h w i h is re w ir nehsce neyp xeeeepis'm e 5 9 3%? meshing w th e 91 9 a dr ve e e ei e ewfixez eifi Heme .ae i mfi"nq fii i M 1 Y fi i b eefi ii the ee e-heed a the 1 9f 1 e qke we the sear li The PH}: 51611 w en h ea i ve i i ecated vwove H 1 vel i lt e, ee and he inert? are $9 d Z a-eat 299 .e ne lsq item the Po n at yxlx l h h eeer ee la nien me h 1 e9 x i. q ed as to 1JbfiQ2 QQBe he device w.. w d nqk llem r qeiyew i iempi I 3 emqmpe m draw g llvet ete my n: xerxtten .Eie- 111$ e yerfi pe eecqipn throu h the e mprhee ion 12 .1 1.1 9 1+ 9 i E s- .2 end vertica ee qn th lines end g e speetiv ely pj Eig. 1; Eigj} is e fregmental verti ee l fs eetiop on the iine 4-4 of Fig.1; Fig. 5 is a anism an I-lie "e'alsin'g' in which the wdrking parts I of the -head'are"enloed'is of a, general perallel'epipedal shape'andxhasa .bottom l2,vfront and rear walls 1.3 and. I4, sidewalls ligand a top wall 1,6. In the upper rear portion of the casing, the rear wall l4, side walls A3 n top .wa L r vcu away t r .vi e .an open for t e i ser iqn n h rxwqrk n pants- 0,1 lt e u e si eq th @9 1? well Pe r Jane bott m her ere n vi eqlfqzwerd ex em r V 3 s (Cl $1 -50 ing bra; kete 9;; which the discharge T It? i5 which the liquid raised by the pump discharges, the pump-head may include an air-pump 50 mounted on the discharge T I8 and having a piston rod 5| connected to the lug 45 by means of an extension 52 secured beneath the nut 48.

For the purpose of driving the pump-head, I prefer to use an electric motor 55 mounted on a bracket 56 at the side of the casing. Preferably, each of the side walls l5 of the casing is provided with a set of outwardly extending threaded bosses 51 by means of which the bracket 56 canbe mounted on either side of the casing, as illustrated in Fig. 6.

The motor 55, mounted on either side of the casing, may be connected by a belt 58 with a pulley 59 on the outer end of the drive shaft 3!.-

I contemplate that when the pump-head is in operation the lower portion of the casing will contain a supply of oil into which the cross-head 25,

at the bottotm of its stroke, and the gear 31 will dip. The bottom" of the cross-head may be formed with inclined side walls as shown in Figs; 1 and 9 to reduce splash. A gage G l may be provided on the side of the casing to indicate the oillevel therein. As the gear 31 rotates, oil adheres to its teeth and is expelled axially at the point where the gear 31 meshes with the pinion 36. The oil expelled forwardly is projected against the rear face of the cross-head 25 and runs downwardly thereon under the influence of gravity to lubricate the upper face of the block 4|. The oil expelled rearwardly from the point at which the pinion 36 and gear 31 mesh is received in a properly positioned groove 62 in the bearing which rotatably supports the shaft 3|.

Conveniently, the shaft 3| is mounted in two axially spaced bearings in the bracket 32 and between these two bearings there is provided an oil well 63'into which the groove'62 discharges. A second groove 62 located in the rear bearing for the shaft 3! receives oil from the well 63 and thus provides for the lubrication of that bearing. Excess oil supplied to the reservoir 63 and to the bearings for the shaft 3| flows down the Walls of the bracket 32 and lubricates the bearings for the shaft 38, which bearings may be provided with oil grooves 64. c

A cover 66 is provided for the casing. In its upper Wall, this cover may have a large opening closed by a closure 61 which is held in place by a thumb nut 68 on the end of a rod 69 that projects upwardly and rearwardly from the bracket 32 through the opening in the cover 66. The thumb-nut 66 serves to hold both the closure 61 and the cover 66 in place, and the thumb nut and closure may be removed at any time for the purpose of inspection or to permit additional lubricant to be supplied to the casing.

A shield 10, conveniently of sheet-metal, is mounted on the front of the casing and encloses the upper end of the pump-rod 20 and of the airpump 50.

Among the advantages of the pump-head described is compactness, especially in respect to height. The possibility of mounting the driving motor on either side of the casing increases the flexibility of installation. Adequate lubrication for all working parts is insured. Removal from the casing of any or all working parts is quickly and easily effected. The gear 31 can be driven in either direction, and by reversing its direction wear is distributed and working life materially increased. The pump rod and drop pipe can be pulled after removing the shield"!!! and the lug 45 without distributing any other parts of the head.

The whole construction is simple, sturdy, and economical to manufacture.

I claim as my invention:

1. A pump head, comprising a casing, a crosshead mounted for sliding movement in said casing, a bracket mounted Within said casing, a rotating element mounted on said bracket for rotation on an axis perpendicular to the path of movement of said cross-head, a block rotatably mounted at an eccentric point on said rotatable element, a transverse guide-way on said crosshead for slidingly receiving said block, and a drive shaft rotatably supported in said bracket and operatively connected to said rotatable element, said bracket, drive shaft, and rotating element being removable as a unit from the casing and from association with said cross-head.

2. A pump head, comprising a casing, a crosshead mounted for sliding movement in said casing, meansfor reciprocating said cross-head, a pump-rod; a lug and means for detachably securing said lug to said cross-head, said casing being providedin one wall with a slot through which said lug projects and said pump-rod being connected to that portion of said lug which projects beyond the slotted casing-wall;

3. A pump-head, comprising a casing, a reciprocable member, means locatedwithin said casing for reciprocating said reciprocating member, said means including a shaft projecting from said casing, a motor for driving said shaft, and two sets of motor-mounting means located exteriorly of'said casing and on opposite sides thereof, whereby said motor, may be mounted on either of such opposite sides.

4. A pump-head, comprising a casing; a vertically reciprocable member mounted in' .said casing; means for reciprocating said reciprocable member; said means'including a gear, a pinion meshing therewith, and a shaft onwhich said pinion is mounted; a bearing for said shaft ad'- jacent said pinion; said casing being adapted to contain a supply of oil into which said reciprocable member, at the bottom of its stroke, and said gear dip; and provisions for distributing to said bearing at least a portion of the oil which adheres to the teeth of said gear and which'is forced axially therefrom by said pinion. V 5. A pump-head, comprising a casing, a pair of vertical guide-rods, said casing being provided with sockets for receiving the lower ends of said guide rods and in'its upper portion with holes which receive and locate the upper endsof said guide-rods and throughwhich the guiderods can be drawn upwardly to remove them from the casing, a cross-head mounted on said guide rods for sliding movement, a bracket mounted within said casing, and mechanism mounted on said bracket for reciprocating said cross-head, said bracket and said mechanism being removable as a unit from said casing and from association with said cross-head.

6. A pump-head as set forth in claim 4 with the addition that said bearing is provided in its shaft-engaging face with a generally longitudinally extending oil groove having an inlet opening positioned adjacent the point at which said gear and pinion mesh, said bearing also having an oil reservoir with which said groove communicates.

said'casing being adapted to contain a supply of oil into which said gear dips, a pinion meshing with said gear at a point above the level of the oil in said casing, said gear and pinion: being disposed adjacent the cross-head whereby oil adhering to the teeth of said gearand forced axially therefrom by said pinion will be delivered against the adjacent face of said cross-head and into said guide-way.

RAYMOND E. SWANSON. 

